greet_chinese = "你好，吃了吗?"
greet_english = "Hello, have you eaten?"
greet_japanese = "こんにちは、食べた？"

greet = greet_chinese
print(greet +"张三")
greet = greet_english
print(greet +"zhang san")
greet = greet_japanese
print(greet_japanese+"張三")
